Inter-cell resource management and cooperative transmission method based on super dense cellular networks

A cellular network and cooperative transmission technology, which is applied in the field of ultra-dense networking and can solve problems such as interference at the same layer

Active Publication Date: 2016-08-17
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the densification of small base stations and the random deployment of cells, more interference will be brought about. With the densification and irregularity of small

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  • Inter-cell resource management and cooperative transmission method based on super dense cellular networks
  • Inter-cell resource management and cooperative transmission method based on super dense cellular networks
  • Inter-cell resource management and cooperative transmission method based on super dense cellular networks

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with drawings and embodiments.

[0041] see figure 1 As shown, the present invention is based on a resource management and cooperative transmission method between cells in an ultra-dense cellular network. In this method, there are 3 adjacent hexagonal sectors in the center of each macro base station, and in each sector, evenly distributed N small base stations and K users are uniformly and randomly distributed in each cell. Specific steps are as follows:

[0042] 1) In the user cell selection criteria, a positive offset value is artificially added to the reference signal received power of the small base station, while the received power of the reference signal of the macro base station does not increase the offset value. After the user selects the serving base station, the definition from the macro base station A user joining a small base station is a CRE user.

[0043] Among them, consider a two-la...

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Abstract

The invention discloses an inter-cell resource management and cooperative transmission method based on super dense cellular networks. The method comprises the following steps: each macro base station center having three adjacent hexagonal sectors, uniformly distributing N small base stations in each sector, and meanwhile, uniformly and randomly distributing K users in the coverage range of each macro base station; selecting an adjacent small base station cooperative transmission or macro base station transmission according to the condition whether a CRE user has an adjacent base station, and meanwhile, the small base station improving the transmission power on the CRE user resource scheduling to reduce the influence caused by the cross-layer interference of the macro base station, and maximizing the total throughput of the system to obtain the power improvement factor of an optimal small base station. The average throughput performance of the cell edge user (CRE) provided by the invention is obviously improved in comparison with the traditional standard scheme, and the total average throughput performance of the system has the certain improvement.

Description

[0001] Technology Neighborhood: [0002] The invention relates to an ultra-dense networking technology in the neighborhood of 5G mobile communication technology, in particular to a resource management and cooperative transmission method between cells in an ultra-dense cellular network. Background technique: [0003] According to the latest market analysis and forecast, for 2020 and the future, mobile data traffic will experience explosive growth. It is estimated that the global mobile data traffic will increase by more than 200 times from 2010 to 2020. The ultra-dense cell network will be the main technical means to meet the demand for mobile data traffic in 2020 and in the future. The ultra-dense cell can bring users closer to the base station to obtain better signal performance through a more "dense" wireless network infrastructure deployment. Higher spectrum reuse efficiency can be obtained, thereby achieving a hundred-fold increase in system capacity in local hotspot areas...

Claims

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Application Information

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IPC IPC(8): H04B7/02H04W48/20H04W52/40H04W72/12
CPCH04B7/024H04W48/20H04W52/40H04W72/542
Inventor 王霞陈新桥王鑫
Owner XI AN JIAOTONG UNIV
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